Siblings in Monitor Audio's Silver series, so they share a family sound. It comes down to size, output and price.
| Area | Better | Why |
|---|
| Bass | A | Monitor Audio Silver C250 7G digs deeper - 65Hz against 76Hz. |
| Amplifier needs | evenly matched | Similar sensitivity (89dB vs 88dB) - both want much the same power. |
| Size | depends | Monitor Audio Silver AMS 7G is easier to place; Monitor Audio Silver C250 7G is bigger, which usually goes with fuller bass. Your room decides. |
| Type | depends | A Passive Center Channel against a Passive Surround - a different job rather than a better one. |
| Cabinet | depends | Sealed vs Ported. Sealed is tighter and happier near a wall; ported digs lower but wants space behind it. |
| Price | evenly matched | Much the same money ($1,100 vs $1,199 a pair). |
A Monitor Audio Silver C250 7G B Monitor Audio Silver AMS 7G
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
Monitor Audio Silver C250 7G has the edge on paper, though the margin is not large. The rows marked "depends" may matter more to you than the score does. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 76Hz anyway, so judge these on the other rows instead. In a large or open-plan room, Monitor Audio Silver C250 7G has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Monitor Audio Silver AMS 7G is the easier speaker to get right.
And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.